Patents
US 12129812 B2: Engine apparatus and method for operation
- Granted
- 2024-10-29
- Filed
- 2020-05-20 application 17603151
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A system for energy conversion, the system including a closed cycle engine containing a volume of working fluid, the engine comprising a first chamber defining an expansion chamber and a second chamber defining a compression chamber each separated by a piston attached to a connection member of a piston assembly, and wherein the engine comprises a heater body in thermal communication with the first chamber, and further wherein the engine comprises a cold side heat exchanger in thermal communication with the second chamber, and wherein a third chamber is defined within the piston, wherein the third chamber is in selective flow communication with the first chamber, the second chamber, or both.
Source: PVGPATDIS, file of 2026-04-10 (ipg241029.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Hyliion Holdings Corp. 56 patents | US company or organization | Cedar Park, TX | HYLIION HOLDINGS CORP. State business registration EXACT high confidence: identical full name and state HYLIION HOLDINGS CORP. SEC filer EXACT medium confidence: identical full name, one of each nationally | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Kevin Michael VandeVoorde | West Chester, OH | 31 | PVGPATDIS, file of 2026-04-10 | |
| Joshua Tyler Mook | Cincinnati, OH | 77 | PVGPATDIS, file of 2026-04-10 | |
| Aigbedion Akwara | Cincinnati, OH | 34 | PVGPATDIS, file of 2026-04-10 | |
| Jason Joseph Bellardi | Fairfield, OH | 27 | PVGPATDIS, file of 2026-04-10 | |
| Mohammed El Hacin Sennoun | West Chester, OH | 43 | PVGPATDIS, file of 2026-04-10 | |
| Mary Kathryn Thompson | Belmont, OH | 53 | PVGPATDIS, file of 2026-04-10 | |
| Scott Douglas Waun | Loveland, OH | 17 | PVGPATDIS, file of 2026-04-10 | |
| Michael Thomas Gansler | Mason, OH | 39 | PVGPATDIS, file of 2026-04-10 | |
| Michael Robert Notarnicola | Cincinnati, OH | 29 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F02G | Hot gas or combustion-product positive-displacement engine plants ; use of waste heat of combustion engines; not otherwise provided for | F02G1/044 | PVGPATDIS, file of 2026-04-10 |
| B33Y | Additive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering | B33Y80/00 | PVGPATDIS, file of 2026-04-10 |
| F23K | Feeding fuel to combustion apparatus | F23K5/20 | PVGPATDIS, file of 2026-04-10 |
| F23L | Supplying air or non-combustible liquids or gases to combustion apparatus in general ; valves or dampers specially adapted for controlling air supply or draught in combustion apparatus ; inducing draught in combustion apparatus; tops for chimneys or ventilating shafts; terminals for flues | F23L15/02 | PVGPATDIS, file of 2026-04-10 |
| F23R | Generating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers | F23R3/005 | PVGPATDIS, file of 2026-04-10 |
| F28D | Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact | F28D9/04 | PVGPATDIS, file of 2026-04-10 |
| F28F | Details of heat-exchange and heat-transfer apparatus, of general application | F28F7/02 | PVGPATDIS, file of 2026-04-10 |
| Y02E | Reduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution | Y02E20/34 | PVGPATDIS, file of 2026-04-10 |
| Y02T | Climate change mitigation technologies related to transportation | Y02T10/12 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2023-07-12 | Assignment Assignment of assignor's interest | GENERAL ELECTRIC COMPANY signed 2022-09-26 | HYLIION HOLDINGS CORP CEDAR PARK, TX | 64226/545 | PASDL, file of 2026-10-15 |
| 2021-10-12 | Assignment Assignment of assignor's interest | AKWARA, AIGBEDION signed 2020-05-19 BELLARDI, JASON JOSEPH signed 2020-05-19 MOOK, JOSHUA TYLER signed 2020-05-19 NOTARNICOLA, MICHAEL ROBERT signed 2020-05-19 SENNOUN, MOHAMMED EL HACIN signed 2020-05-19 GANSLER, MICHAEL THOMAS signed 2020-05-21 THOMPSON, MARY KATHRYN signed 2020-05-22 WAUN, SCOTT DOUGLAS signed 2020-05-22 VANDEVOORDE, KEVIN MICHAEL signed 2020-06-05 | GENERAL ELECTRIC COMPANY SCHENECTADY, NY | 57764/855 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.